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Finding the Fourth Proportional to 11,701.50, 17,555.13 and 3,493.50

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Solution

The fourth proportional to 11,701.50, 17,555.13 and 3,493.50 is: 5,241.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,701.50 : 17,555.13 = 3,493.50 : x
  2. Step 2: Convert to fraction form
    11,701.50/17,555.13 = 3,493.50/x
  3. Step 3: Cross multiply
    11,701.50x = 17,555.13 × 3,493.50
  4. Step 4: Simplify right side
    11,701.50x = 61,328,846.66
  5. Step 5: Solve for x
    x = 61,328,846.66/11,701.50
  6. Step 6: Final answer
    x = 5,241.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.